Home / 8,136.08-12,202.20-3,750.80

Finding the Fourth Proportional to 8,136.08, 12,202.20 and 3,750.80

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Solution

The fourth proportional to 8,136.08, 12,202.20 and 3,750.80 is: 5,625.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.08 : 12,202.20 = 3,750.80 : x
  2. Step 2: Convert to fraction form
    8,136.08/12,202.20 = 3,750.80/x
  3. Step 3: Cross multiply
    8,136.08x = 12,202.20 × 3,750.80
  4. Step 4: Simplify right side
    8,136.08x = 45,768,011.76
  5. Step 5: Solve for x
    x = 45,768,011.76/8,136.08
  6. Step 6: Final answer
    x = 5,625.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.